The project
Schema Labs is building browser-local tools for engineers who work with JSON data contracts. The public developer preview combines JSON Schema validation with a conservative revision checker in a single workspace.
Schema Labs Ltd operates the Schema Labs website, documentation and public developer preview at schemalabs.co.uk. The product and contact address use the same domain.
Company information
- Company name
- SCHEMA LABS LTD
- Company number
- 15348827
- Company status
- Active
- Company type
- Private limited company
- Incorporated on
- 13 December 2023
- Jurisdiction
- England and Wales
- Registered office
- 20 Wenlock Road, London, England, N1 7GU
- Nature of business (SIC)
- 62012 — Business and domestic software development
View the public Companies House record for Schema Labs Ltd for registration details and current filings.
What is available today
- JSON Schema validation using Ajv.
- Structural revision review with explicit severity labels.
- Local JSON file input and downloadable check reports.
- A browser worker that processes documents without sending them to a service.
This is an early developer preview, not a hosted enterprise platform. Account management, team workspaces and managed CI integrations are not offered in this release.
Development direction
We use Claude Code in our development workflow for implementation support, test coverage, and review of edge cases. It helped refine the current interface and exercise the browser-local checks. The next product work is clearer migration explanations and better handling of advanced schema composition.
Contact Schema Labs
Product questions and feedback: founder@schemalabs.co.uk.
For the most useful feedback, include the schema dialect, an anonymized example and the result you expected. Small, reproducible cases help us improve the checks.